Swimming at the 1968 Summer Olympics – Women's 100 metre freestyle
The women's 100 metre freestyle event at the 1968 Olympic Games took place between 18 and 19 October. This swimming event used freestyle swimming, which means that the method of the stroke is not regulated. Nearly all swimmers use the front crawl or a variant of that stroke. Because an Olympic-size swimming pool is 50 metres long, this race consisted of two lengths of the pool.
Medalists
Results
Heats
Heat 1| Rank | Athlete | Country | Time | Note |
| 1 | Claude Mandonnaud | 1:03.2 | ||
| 2 | Elisabeth Berglund | 1:03.6 | ||
| 3 | Jenny Steinbeck | 1:03.8 | ||
| 4 | Simone Hanner | 1:03.8 | ||
| 5 | Helen Elliott | 1:05.1 | ||
| 6 | Patricia Olano | 1:05.3 |
Heat 2
| Rank | Athlete | Country | Time | Note |
| 1 | Alexandra Jackson | 1:00.5 | ||
| 2 | Nataliya Ustinova | 1:03.8 | ||
| 3 | Miwako Kobayashi | 1:04.2 | ||
| 4 | Mariya Nikolova | 1:05.1 | ||
| 5 | Shen Bao-ni | 1:06.7 | ||
| 6 | Ruth Apt | 1:07.0 |
Heat 3
| Rank | Athlete | Country | Time | Note |
| 1 | Nel Bos | 1:03.0 | ||
| 2 | Mirjana Šegrt | 1:03.3 | ||
| 3 | Edit Kovács | 1:03.7 | ||
| 4 | Catherine Grosjean | 1:04.9 | ||
| 5 | Fiona Kellock | 1:05.8 | ||
| 6 | Gillian Treers | 1:06.3 | ||
| 7 | Silvana Asturias | 1:10.3 |
Heat 4
| Rank | Athlete | Country | Time | Note |
| 1 | Judit Turóczy | 1:02.1 | ||
| 2 | Shigeko Kawanishi | 1:02.6 | ||
| 3 | Uta Schmuck | 1:03.1 | ||
| 4 | Lotten Andersson | 1:04.5 | ||
| 5 | Rosario de Vivanco | 1:04.7 | ||
| 6 | Ingeborg Renner | 1:05.9 | ||
| 7 | Hedy García | 1:06.1 | ||
| 8 | Lorna Blake | 1:13.2 |
Heat 5
| Rank | Athlete | Country | Time | Note |
| 1 | Linda Gustavson | 1:00.8 | ||
| 2 | Martina Grunert | 1:03.2 | ||
| 3 | Maria Strumolo | 1:04.1 | ||
| 4 | Helmi Boxberger | 1:05.1 | ||
| 5 | Vera Kock | 1:05.1 | ||
| 6 | Vivian Ortíz | 1:06.9 | ||
| 7 | Emilia Figueroa | 1:07.2 | ||
| 8 | Ana Marcial | 1:10.1 |
Heat 6
| Rank | Athlete | Country | Time | Note |
| 1 | Sue Pedersen | 1:01.5 | ||
| 2 | Roswitha Krause | 1:03.3 | ||
| 3 | Lynne Watson | 1:03.5 | ||
| 4 | Magdolna Patóh | 1:03.8 | ||
| 5 | Ana Boban | 1:05.4 | ||
| 6 | Toos Beumer | 1:06.1 | ||
| 7 | Lylian Castillo | 1:08.3 | ||
| 8 | Rosa Hasbún | 1:10.0 |
Heat 7
| Rank | Athlete | Country | Time | Note |
| 1 | Marion Lay | 1:00.6 | ||
| 2 | Lidiya Hrebets | 1:03.3 | ||
| 3 | Oľga Kozičová | 1:03.3 | ||
| 4 | Zoya Dus | 1:04.2 | ||
| 5 | Carmen Ferracuti | 1:08.5 | ||
| 6 | Nguyễn Minh Tam | 1:09.5 |
Heat 8
| Rank | Athlete | Country | Time | Note |
| 1 | Jan Henne | 1:00.1 | ||
| 2 | Lyn Bell | 1:01.9 | ||
| 3 | Oei Liana | 1:03.0 | ||
| 4 | Heidi Reineck | 1:04.2 | ||
| 5 | Marcia Arriaga | 1:05.4 | ||
| 6 | Mirjam van Hemert | 1:06.1 | ||
| 7 | Hrafnhildur Guðmundsdóttir | 1:06.3 | ||
| 8 | Kristina Moir | 1:07.9 |
Semifinals
Final
| Rank | Athlete | Country | Time | Notes |
| Jan Henne | 1:00.0 | |||
| Susan Pedersen | 1:00.3 | |||
| Linda Gustavson | 1:00.3 | |||
| 4 | Marion Lay | 1:00.5 | ||
| 5 | Martina Grunert | 1:01.0 | ||
| 6 | Alexandra Jackson | 1:01.0 | ||
| 7 | Mirjana Šegrt | 1:01.5 | ||
| 8 | Judit Turóczy | 1:01.6 |